The connection characteristics and methods of ceramic and metal were studied, and emphatically the current research status of ceramic and metal active brazing, diffusion welding, self-propagating high temperature synthesis welding, fusion welding, friction welding, ultrasonic welding, hot-press reaction sintering welding and other welding methods were introduced. The main problems and improvement methods existing in the current ceramic and metal welding are discussed, and the development trend of ceramic and metal brazing connection is prospected.